“You have to understand that we do not have a definite date on when this (MAX) aircraft will be flying.”

Flydubai said in March the MAX was integral to its future.

Other airlines have weighed their options since the grounding. A decision from Saudi Arabian budget carrier flyadeal on whether to proceed with an existing order for 30 MAX jets is imminent, its chief executive said on Sunday.

Biggest crisis

Flydubai potentially swapping any or part of its order comes as the world’s largest planemaker faces one of the biggest crises in its 103-year history.

Boeing, which holds its annual meeting in Chicago on Monday, did not immediately respond to a request for comment.

Flydubai is the second biggest MAX customer and last committed to Boeing’s best selling jet in 2017 with an order worth $27 billion including purchasing options.

Sheikh Ahmed, who is also the Emirates Chairman, said flydubai would act within its contract terms with Boeing but would not would not allow anything to stop the airline’s growth.

He did not say when flydubai would decide on whether it pursues a replacement order with Airbus.

Sheikh Ahmed also said that Boeing’s communication with customer over the grounding and how it plans to recertify the plane “could be better.”

Boeing has said it is developing a software fix and new pilot training for regulatory approval in order to get the company’s best-selling plane recertified.